ABYC IYRS Electrical Exam Questions with Correct Answers

The minimum amp circuit breaker that should be used to protect a 120V water heater circuit with a 1600-watt element would be rated at ________ amps Correct Answer 15 When testing for excessive EMF emission near a conductor or appliance, the tool of choice is a Correct Answer Gauss Meter The primary problem with using a series circuit to supply multiple loads is that Correct Answer voltage drop across each load will be excessive The most common electrical circuit problem in marine applications is Correct Answer unwanted open The primary by-product of excessive electrical resistance is Correct Answer heat The tool of choice today for tracing shorted and open circuits is the: Correct Answer TDR What material is recommended for clamping conductors over engines and moving machinery according to the ABYC Correct Answer Metal According to ABYC acceptable minimum clearance for routing wire near a dry exhaust section is Correct Answer 9 inches (225 mm) The maximum number of terminals allowed to be attached to any one terminal stud based on ABYC is Correct Answer 4 How much current should flow through the DC grounding conductor in a 25-amp DC motor circuit Correct Answer 0 amps Conductors of #10 AWG and larger shall be permitted to be connected in parallel ______ Correct Answer Where the ampacity of each individual conductor is sufficient to carry the entire load current shared by the parallel conductors A technician is installing the cable run from the batteries to the main DC panelboard on a boat aspart of a refit. The boat has a 12-volt system, and the distance from the panel to the batteries is 15 ft (approximately 3 m).The maximum current draw from the panel is calculated at 90 amps.What gauge cable should be used at a minimum to maintain Standards compliance? Correct Answer 0 AWG 8. DC grounded conductors on new boats that are also equipped with AC systems should use _________ insulation. Correct Answer yellow